// 导入Vue
import Vue from 'vue'
// 导入路由
import Router from 'vue-router'
// 安装路由
Vue.use(Router)
// 导入布局组件
/* Layout */
import Layout from '@/layout'
import classRouter from './modules/class'
import contentRouter from './modules/content'
import examRouter from './modules/exam'
import permissionRouter from './modules/permission'
import subjectRouter from './modules/subject'
import systemRouter from './modules/system'
// 路由的一些自定义配置
/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   如果设置为true，则不显示在侧边栏菜单(default is false)
 * alwaysShow: true               如果设置为true，将一直显示在根菜单
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           重定向地址  if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             路由的name名称  the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']     无用，  control the page roles (you can set multiple roles)
    title: 'title'                标题文字 the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x'  图标  the icon show in the sidebar
    breadcrumb: false             是否显示在面包屑中  if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'   高亮激活的菜单 if set path, the sidebar will highlight the path you set
  }
 */

// 动态路由
export const asyncRoutes = [
  permissionRouter,
  systemRouter,
  subjectRouter,
  classRouter,
  examRouter,
  contentRouter
]

// 静态路由
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },
  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'dashboard',
        component: () => import('@/views/dashboard/index'),
        meta: { title: '首页', icon: 'dashboard' },
        hidden: true
      }
    ]
  },
  // 404 page must be placed at the end !!!
  { path: '*', redirect: '/404', hidden: true }
]
// 创建路由的方法
const createRouter = () =>
  new Router({
    // mode: "history", // require service support
    // mode表示路由模式，默认是hash模式，如果要设置成history模式上线的时候是需要后端进行配置设置
    // 如果设置history，上线之后要让后端区分好哪个是前端路由，哪个是后端路由，否则会冲突
    scrollBehavior: () => ({ y: 0 }),
    routes: [...constantRoutes, ...asyncRoutes] // 静态路由+动态路由 配置放在一起
    // routes: [...constantRoutes] // 静态路由配置
  })
// 调用，得到一个路由实例对象
const router = createRouter()

// 重置路由的方法
// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}
// 暴露
export default router
